CN110486847A

CN110486847A - Electrically-controlled component, outdoor unit and air conditioner

Info

Publication number: CN110486847A
Application number: CN201810461552.0A
Authority: CN
Inventors: 霍兆镜; 李洪涛
Original assignee: Midea Group Co Ltd; Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2019-11-22
Anticipated expiration: 2038-05-14
Also published as: CN110486847B

Abstract

The present invention discloses a kind of electrically-controlled component, outdoor unit and air conditioner, the electrically-controlled component includes master controller, rectifier bridge, pfc circuit, dc-link capacitance and compressor IPM module, rectifier bridge, pfc circuit and compressor IPM module are sequentially connected, dc-link capacitance is parallel to the output end of pfc circuit, master controller is separately connected with pfc circuit and compressor IPM module, electrically-controlled component further include: box body is radiated for being detachably connected with fluid reservoir with being contacted by fluid reservoir；First circuit board, rectifier bridge, compressor IPM module and PFC power switch are all set on first circuit board, and first circuit board, PFC inductance and dc-link capacitance are set in box body, and are connected by connecting line；Second circuit board, master controller are set on second circuit board.The present invention utilizes the low-temperature working environment of fluid reservoir, improves the radiating efficiency of electrically-controlled component.

Description

Electrically-controlled component, outdoor unit and air conditioner

Technical field

The present invention relates to family's electro-technical field, in particular to a kind of electrically-controlled component, outdoor unit and air conditioner.

Background technique

In the electrical equipment that air conditioner, refrigerator etc. are equipped with frequency converter, it is typically provided with PFC, the circuits such as IPM, and this A little circuit elements can generate heat during the work time, if radiating not in time to it, it is more likely that will affect the work of electric appliance Make performance.For this reason, it may be necessary to which the heater elements such as IPM cool down to PFC, guarantee its reliability and service life.

Currently, to the mode that above-mentioned heater element carries out, the method for mostly using external metal heat sink greatly, such as in air-conditioning In, it is also possible to it is radiated by outdoor machine fan, this mode needs to increase the power of fan and increases radiator Volume leads to cost raising of radiating, but radiating efficiency is still lower, PFC, and the temperature of the heater elements such as IPM is still at 100 degree More than.

Summary of the invention

The main object of the present invention is to propose a kind of electrically-controlled component, outdoor unit and air conditioner, it is intended to improve compressor electronic control The radiating efficiency of component.

To achieve the above object, the present invention proposes that a kind of electrically-controlled component, the electrically-controlled component include master controller, rectification Bridge, pfc circuit, dc-link capacitance and compressor IPM module, the rectifier bridge, the pfc circuit and the compressor IPM Module is sequentially connected, and the dc-link capacitance is parallel to the output end of the pfc circuit, the master controller and the PFC Circuit and the compressor IPM module are separately connected；The pfc circuit includes PFC power switch and PFC inductance；It is described automatically controlled Component further include:

Box body, for being detachably connected with fluid reservoir, to pass through fluid reservoir contact heat dissipation；

First circuit board, the rectifier bridge, compressor IPM module and PFC power switch are set to the first circuit board On, the first circuit board is set in the box body；

Second circuit board, the master controller are set on the second circuit board；

The PFC inductance and dc-link capacitance are mounted on the inner wall of the box body, the PFC inductance and the direct current Bus capacitor passes through connecting line and corresponding connection on the first circuit board respectively.

Optionally, PFC inductive interface and dc-link capacitance interface, the PFC are additionally provided on the first circuit board Inductance is connect with the PFC inductive interface, and the dc-link capacitance is connect with the capacitive interface.

Optionally, power input interface, Switching Power Supply and EMC filter circuit, institute are additionally provided on the second circuit board The input terminal for stating EMC filter circuit is connect with the power input interface, the output end of the EMC filter circuit and the rectification Bridging connects；

The input terminal of the Switching Power Supply is connect with the rectifier bridge, the output end of the Switching Power Supply and the main control The power end of device is electrically connected.

Optionally, the electrically-controlled component further includes DC fan IPM module, and the DC fan IPM module is set to described On first circuit board, the DC fan IPM module is electrically connected with the master controller.

Optionally, the box body has the first accommodating cavity and the second accommodating cavity, the rectifier bridge, the PFC power switch And the compressor IPM module is placed in first accommodating cavity, the PFC inductance and the dc-link capacitance are placed in In second accommodating cavity, the PFC inductance and the dc-link capacitance pass through the second accommodating cavity heat loss through radiation；

The PFC power switch is integrated in the compressor IPM module, alternatively, the PFC power switch and the pressure The discrete setting of contracting machine IPM module.

Optionally, the electrically-controlled component further includes heat dissipation metal plate, and the heat dissipation metal plate side is fixedly mounted on the liquid storage The other side of the one side of tank, the heat dissipation metal plate is detachably connected with the box body.

Optionally, the electrically-controlled component further includes mounting bracket, the mounting bracket have back to the first side and second First side of side, the mounting bracket is sticked on the first circuit board, and the compressor IPM module is mounted on the installation Second side of bracket, the pin of the compressor IPM module pass through the mounting bracket and are connected and fixed with the first circuit board；

There is installation window, the compressor IPM module is attached at described dissipate by the installation window on the box body On hot metal plate.

Optionally, the rectifier bridge is mounted on second side of the mounting bracket, and the pin of the rectifier bridge passes through described Mounting bracket is connected and fixed with the first circuit board, and the rectifier bridge is attached at the heat dissipation metal plate by the installation window On.

The present invention also proposes a kind of outdoor unit, which includes compressor and electrically-controlled component as described above, the pressure Contracting machine has fluid reservoir, and the electrically-controlled component is fixedly mounted on the outer wall of the fluid reservoir, the main control of the electrically-controlled component Device with indoor unit for communicating.

Optionally, the second circuit board is arranged in the box body or the second circuit board is arranged in the room In the shell of outer machine, and it is located at outside the box body.

The present invention also proposes that a kind of air conditioner, including compressor and electrically-controlled component as described above, the compressor have Fluid reservoir, the electrically-controlled component are fixedly mounted on the outer wall of the fluid reservoir；Or including indoor unit and outdoor as described above Machine, the main control chip communication connection of the master controller of the outdoor unit and the indoor unit, the structure of electrically-controlled component or outdoor unit Referring to above-mentioned, details are not described herein again.

Rectifier bridge, compressor IPM module and PFC power switch are set to the first circuit board by electrically-controlled component of the present invention On, and master controller is set on the second circuit board；Between master controller and compressor IPM module and main control It can be electrically connected by conducting wire between device and PFC power switch, first circuit board, PFC inductance and dc-link capacitance setting In box body, PFC inductance and dc-link capacitance pass through connecting line respectively and connect with first circuit board, and box body is removable with fluid reservoir Connection is unloaded, and is contacted and is radiated by fluid reservoir, is conducive to rectifier bridge, compressor IPM module and the PFC power on first circuit board At work, the heat of generation is conducted heat on fluid reservoir by box body, and is stored up for the components such as switch and circuit module It is absorbed when refrigerant vaporization in flow container, thus using the low-temperature working environment of fluid reservoir, improves rate of heat dispation, PFC inductance and straight Stream bus capacitor passes through heat loss through radiation.Electrically-controlled component of the present invention is using two pieces of circuit boards of first circuit board and second circuit board come real It is existing, and the nonthermal sources such as heat sources device and master controller such as rectifier bridge, compressor IPM module and PFC power switch are provided separately, It can radiate to avoid Heat source device part to nonthermal source device, and influence the work of nonthermal source device.Due to PFC inductance and DC bus electricity Volume product is big and more heavy, is mounted on first circuit board and exists since vibration of compressor causes PFC inductance and direct current female Line capacitance splits the danger of weldering, therefore PFC inductance and dc-link capacitance are passed through connecting line and first circuit board by the present invention respectively The case where connecting, causing first circuit board to split weldering when to avoiding vibration of compressor, and can solve using a monolith circuit For plate come when realizing, component is intensive, the problem of wiring and electric appliance isolation difficulty can also reduce list using two pieces of circuit boards Block circuit board, such as the volume of first circuit board, are easily installed in the box body of electrically-controlled component, simplify the pcb board of electric-controlled plate Layout.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the electrical block diagram of one embodiment of electrically-controlled component of the present invention；

Fig. 2 is the structural schematic diagram of one embodiment of electrically-controlled component of the present invention；

Fig. 3 is the structural schematic diagram of one embodiment of first circuit board in electrically-controlled component of the present invention；

Fig. 4 is the structural schematic diagram of one embodiment of second circuit board in electrically-controlled component of the present invention；

Fig. 5 is the structural schematic diagram of one embodiment of outdoor unit of the present invention.

Label	Title	Label	Title
				10	Master controller	120	Second circuit board
20	Rectifier bridge	200	Fluid reservoir
				30	Pfc circuit	300	Radiator
40	Dc-link capacitance	400	Mounting bracket
				50	Compressor IPM module	500	Sealing ring
60	DC fan IPM module	600	Box cover
				70	Switching Power Supply	700	Compressor
80	EMC filter circuit	41	Dc-link capacitance interface
				100	Box body	32	PFC inductance
110	First circuit board	33	PFC inductive interface
				111	Controller	CN1	Communication interface
31	PFC power switch	Vin	Power input interface
				Vout	Power output interface

The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.

It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention, Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship, Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution Conjunction is not present, also not the present invention claims protection scope within.

The present invention proposes a kind of electrically-controlled component, can be used in the equipment such as air-conditioning, refrigerator, below for convenience of understanding, is illustrating When, it is illustrated for being applied to air-conditioning.

Referring to figs. 1 to Fig. 5, in an embodiment of the present invention, which includes master controller 10, rectifier bridge 20, PFC Circuit 30, dc-link capacitance 40 and compressor IPM module 50, the rectifier bridge 20, the pfc circuit 30 and the compressor IPM module 50 is sequentially connected, and the dc-link capacitance 40 is parallel to the output end of the pfc circuit 30, the master controller 10 are separately connected with the pfc circuit 30 and the compressor IPM module 50；The pfc circuit pfc circuit 30 includes PFC function Rate switch 31 and PFC inductance 32；The electrically-controlled component further include:

Box body 100, for being detachably connected with fluid reservoir 200, to pass through the fluid reservoir 200 contact heat dissipation；

First circuit board 110, the rectifier bridge 20, compressor IPM module 50 and PFC power switch 31 are all set in described On first circuit board 110, the first circuit board 110 is set in the box body 100；

Second circuit board 120, the master controller 10 are set on the second circuit board 120；

The PFC inductance 32 and dc-link capacitance 40 are mounted on the inner wall of box body 100, the PFC inductance 32 and straight Bus capacitor 40 is flowed respectively by connecting line and corresponding connection on first circuit board 110.

In the present embodiment, box body 100 is for accommodating first circuit board 110, PFC inductance 32 and dc-link capacitance 40, box Body 100 can be made using plastic material, can also be made using the metal materials such as aluminium or aluminum alloy material, the present embodiment It is chosen as metal material realization.Box body 100 passes through one or more in screw, bolt, riveting, welding, clamping and inserting mode Combination is fixed on fluid reservoir 200, and is bonded with the one side of fluid reservoir 200, and the refrigerant in fluid reservoir 200 is in vaporization meeting Heat is absorbed, therefore its operating temperature generally maintains between subzero 20 degrees Celsius~30 degrees Celsius, so set, being conducive to first The components such as rectifier bridge 20, compressor IPM module 50 and PFC power switch 31 on circuit board 110 and circuit module are working When, the heat of generation is conducted heat on fluid reservoir 200 by box body 100, and while being vaporized by the refrigerant in fluid reservoir 200 inhales It receives, to improve rate of heat dispation using the low-temperature working environment of fluid reservoir 200.Due to heater elements such as compressor IPM modules 50 Temperature can drop very low, therefore, under equal conditions, the heatable power of module (chip) can do higher, that is, use Current chip can drive more high power load, without crossing cause thermal damage, in other words, little module driving may be implemented more Number air-conditioning, and since PFC inductance 32 and 40 volume of dc-link capacitance are big and more heavy, it is mounted on first circuit board 110 exist since the vibration of compressor 700 causes PFC inductance 32 and dc-link capacitance 40 to split the danger of weldering, and the present invention will PFC inductance 32 and dc-link capacitance 40 are connect by connecting line with first circuit board, so that compressor 700 be avoided to make when vibrating The case where splitting weldering at first circuit board 110.

Pfc circuit 30 may include PFC power switch 31 also with the components such as diode (figure do not indicate), PFC inductance 32, To realize the Active PFC to DC power supply.Pfc circuit 30 can be realized using passive PFC circuit, to constitute boosting Type pfc circuit perhaps voltage-dropping type pfc circuit or buck-boost type pfc circuit.It is understood that in practical applications, PFC Power switch 31 can be arranged type according to pfc circuit 30 with 20 position of rectifier bridge and connection relationship and is adaptively adjusted.PFC Control of the circuit 30 based on master controller 10, and the direct current that rectifier bridge 20 is inputted carries out power factor (PF) adjustment, such as will be whole The DC voltage that stream bridge 20 exports increases and stablizes in 380V, so that input current follows input voltage, guarantees DC power supply Power factor (PF) 0.9 or more.DC power transmission adjusted is to dc-link capacitance 40, after the filtering of dc-link capacitance 40 Output is to compressor IPM module 50, for compressor IPM module 50.Direct current adjusted can also pass through Switching Power Supply 70 Circuit generates the driving voltage of various numerical value, such as generates the voltages such as 5V, 15V, for such as main control of second circuit board 120 Component power supply on device 10 and first circuit board 110.

It is understood that being additionally provided with PFC inductive interface 33 and dc-link capacitance interface on first circuit board 110 41, PFC inductance 32 are connect with the PFC inductive interface 33, so as to by 32 lead of PFC inductance to first circuit board 110, to be Pfc circuit 30 provides energy storage step-up device, and dc-link capacitance 40 is connect with dc-link capacitance interface 41, so that direct current is female 40 lead of line capacitance is to first circuit board, so that dc-link capacitance 40 be made to be connected in parallel on the output end of pfc circuit 30.

In the present embodiment, be additionally provided on second circuit board 120 power input interface Vin for accessing AC power source, It for the power output interface Vout of output AC power source to first circuit board, and is used for and external device (ED), such as air conditioning chamber The communication interface CN1 that interior machine is communicated.The controller 111 for carrying out data processing is additionally provided on first circuit board 110.Master control It is integrated with sequence controller, memory, data processor in device 10 processed, and is stored on the memory and can be in the number According to the software program and/or module run on processor, master controller 10 is stored in soft in memory by operation or execution Part program and/or module, and the data being stored in memory are called, and pass through the second of communication interface CN1 and indoor unit Control unit on circuit board 120 is communicated, and the control signal that control unit exports is exported to first circuit board 110 Controller, controller will control signal and be converted to after corresponding logic level signal output to PFC power switch 31 and compression Machine IPM module 50, to drive PFC power switch 31 and compressor IPM module 50 to work.

It is understood that be additionally provided on second circuit board 120 be able to detect rectifier bridge 20, PFC power switch 31 and The real-time detection circuit of the parameters such as each element current, temperature and voltage in compressor IPM module 50, and heavy overload is occurring Even direct short-circuit or temperature overheating when the failures such as driving voltage over-voltage, can control the power device soft switching in IPM, Fault-signal is simultaneously emitted by control circuit unit, so that control circuit unit controls the work of other circuit modules, to avoid Other circuit modules are damaged because of failure.

In the present embodiment, compressor IPM module 50 is integrated with multiple power switch tubes, multiple power switch tube composition drivings Inverter circuit, such as three-phase inversion bridge circuit can be made of six power switch tubes, or be made of four power switch tubes Two-phase inverter bridge circuit.Wherein, each power switch tube can be realized using metal-oxide-semiconductor or IGBT.Compressor IPM module 50 For driving compressor electric motor.Certainly in other embodiments, compressor IPM module 50 can be also used for driving other motors Frequency converter and various inverters, and it is applied to frequency control, metallurgical machinery, electric propulsion, the frequency conversions such as servo-drive and air-conditioning In the fields such as household electrical appliances.It is understood that the volume of circuit board is reduced in order to improve the integrated level of compressor IPM module 50, this The PFC power switch 31 can be integrated in the compressor IPM module 50 certainly in other embodiments by embodiment, Stating PFC power switch 31 and compressor IPM module 50 discrete can also be arranged, herein with no restrictions.

In the present embodiment, the quantity of dc-link capacitance 40 can be one, be also possible to it is multiple, specifically can be according to power The number of equipment is set, such as in 1 or 2 air conditioner, the quantity of dc-link capacitance 40 is traditionally arranged to be one, In 3 and 3 or more air conditioners, the quantity of dc-link capacitance 40 is traditionally arranged to be two or more.Certainly in other implementations In example, the quantity of dc-link capacitance 40 can be set according to the energy storage demand of power apparatus, herein with no restrictions.

It should be noted that rectifier bridge 20, compressor IPM module 50 and PFC power switch 31, especially compressor IPM General heating is more serious at work for module 50, and the heat that power device generates can be passed by electric-controlled plate to master controller 10 It leads, so that nearly reaching identical temperature with master controller 10.And the ideal working temperature of master controller 10 is less than function mostly Rate device, thus the operating temperature of power device may cause master controller 10 operating temperature it is excessively high and break down, make Main controller 10 is easy the control signal of output error, in order to avoid the above problem occurs, by master controller in the present embodiment 10 are arranged on second circuit board 120, and rectifier bridge 20, compressor IPM module 50 and PFC power switch 31 are arranged first On circuit board 110, between master controller 10 and compressor IPM module 50 and between master controller 10 and PFC power switch 31 It can be electrically connected by conducting wire, and PFC inductance 32, dc-link capacitance 40 and first circuit board 110 are arranged in box body 100 It is interior, it is radiated by fluid reservoir 200, so that the operating temperature of component and circuit module on first circuit board 110 be tieed up It holds at -20 degrees Celsius~120 degrees Celsius.It is arranged such, it is ensured that rectifier bridge 20, compressor IPM module 50 and PFC power are opened The radiating elements such as Hot-air fan can be set without being casually arranged with, both can be improved scattered by 200 rapid cooling of fluid reservoir by closing the heat that 31 generate The thermal efficiency, while the driving delay decrease of PFC power switch 31 and compressor IPM module 50 is also helped, so as to improve The switching speed of each power switch tube, and can reduce the switching loss and electromagnetic interference of compressor IPM module 50, guarantee pressure Contracting machine IPM module 50 can operation reliably and with long-term, PFC inductance 32 and dc-link capacitance 40 pass through connecting line and the first circuit Plate 110 connects, and since PFC inductance 32 and 40 volume of dc-link capacitance are big and more heavy, is mounted on first circuit board 110 PFC inductance 32 and dc-link capacitance 40 is caused to split the danger of weldering in the presence of due to the vibration of compressor 700, and the present invention is electric by PFC Sense 32 and dc-link capacitance 40 are connect by connecting line with first circuit board, avoid to cause the when the vibration of compressor 700 The case where one circuit board 110 splits weldering, and PFC inductance 32 and dc-link capacitance 40 are mounted on 100 in box body, and cabling is short, easily In line, safety, and complete machine is more succinct.

Rectifier bridge 20, compressor IPM module 50 and PFC power switch 31 are set to described by electrically-controlled component of the present invention On one circuit board 110, and by master controller 10, it is set on the second circuit board 120；Master controller 10 and compressor IPM It can be electrically connected by conducting wire between module 50 and between master controller 10 and PFC power switch 31, it is PFC inductance 32, straight It flows bus capacitor 40 and first circuit board 110 is arranged in box body 100, PFC inductance 32, dc-link capacitance 40 pass through company respectively Wiring is connect with first circuit board 110, effectively avoids first circuit board 110 because splitting the danger of weldering caused by when compressor 700 vibrates, And box body 100 is detachably connected with fluid reservoir 200, and by the contact heat dissipation of fluid reservoir 200, is conducive on first circuit board 110 The components such as rectifier bridge 20, compressor IPM module 50 and PFC power switch 31 and circuit module at work, the heat of generation It is absorbed when measuring and conducted heat on fluid reservoir 200 by box body 100, and being vaporized by the refrigerant in fluid reservoir 200, to utilize The low-temperature working environment of fluid reservoir 200 improves rate of heat dispation.Electrically-controlled component of the present invention is using second circuit board 120 and the first electricity Plate 110 two pieces of circuit boards in road realize, and by heat sources devices such as rectifier bridge 20, compressor IPM module 50 and PFC power switch 31 It is provided separately, can be radiated to nonthermal source device to avoid Heat source device part with the equal nonthermal sources of master controller 10, and influence nonthermal source device Part work.And it can solve using a monolith circuit board come when realizing, component is intensive, wiring and electric appliance isolation are difficult The problem of, single circuit board, such as the volume of first circuit board 110 can also be reduced using two pieces of circuit boards, be easily installed in In the box body 100 of electrically-controlled component, the pcb board layout of electric-controlled plate is simplified.The present invention solve use increase fan power with And increase the volume of radiator, cause heat dissipation cost to increase, but the problem that radiating efficiency is still lower.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, the electrically-controlled component further includes DC fan IPM module 60, institute DC fan IPM module 60 is stated on the first circuit board 110, the DC fan IPM module 60 and the main control Device 10 is electrically connected.

It should be noted that the outdoor fan of air conditioner can be divided into AC blower fan and DC fan, AC blower fan is general It can work without driving, and DC fan is then needed to control its work by power drive.Outdoor wind in this implementation Machine is optional to be realized using DC fan, adaptation, and the present embodiment is additionally provided with DC fan IPM module 60, straight for driving Multiple IGBT, metal-oxide-semiconductor constant power switch are integrated in flow fan, DC fan IPM module 60 and compressor IPM module 50 respectively Pipe, the quantity of multiple power switch tubes can be four or six, and particular number can be according to motor type, driving power etc. Setting, herein with no restrictions.Certainly in other embodiments, DC fan IPM module 60 can also be set on second circuit board On 120, the present embodiment is illustrated so that DC fan IPM module 60 is set on 120 on second circuit board as an example.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, the box body 100 has the first accommodating cavity and the second accommodating cavity, The rectifier bridge 20, the PFC power switch 31 and the compressor IPM module 50 are placed in first accommodating cavity, institute It states PFC inductance 32 and the dc-link capacitance 40 is placed in second accommodating cavity, the PFC inductance 32 and the direct current Bus capacitor 40 passes through the second accommodating cavity heat loss through radiation.

In the present embodiment, the first accommodating cavity is that face heat dissipation metal plate 300 is arranged, rectifier bridge 20, the PFC power switch 31 and the compressor IPM module 50 caused by heat can by heat dissipation metal plate 300 quickly conduction on fluid reservoir 200, And accelerate the heat dissipation of said elements, improve radiating efficiency.The outer wall of second accommodating cavity is at least partly pasted with the outer wall of fluid reservoir 200 It closes, so set, making the fever such as PFC inductance 32 and dc-link capacitance 40 more serious, and the biggish component of volume exists Fit into the second accommodating cavity, thus PFC inductance 32 and dc-link capacitance 40 at work, the heat of generation passes through second Accommodating cavity conducts heat on fluid reservoir 200, and by fluid reservoir 200 refrigerant vaporize when absorb, to utilize fluid reservoir 200 low-temperature working environment improves rate of heat dispation.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, electrically-controlled component further includes heat dissipation metal plate 300, the heat dissipation metal plate 300 side is fixedly mounted on the one side of the fluid reservoir 200, the other side of the heat dissipation metal plate 300 and the box body 100 It is detachably connected.

In the present embodiment, the side of heat dissipation metal plate 300 can pass through screw, bolt, riveting, welding, clamping and grafting side In formula it is one or more combination be mounted on the fluid reservoir 200, heat dissipation metal plate 300 the other side again may be by screw, One or more combinations are detachably fixed with box body 100 in bolt, riveting, welding, clamping and inserting mode, and radiate metal plate 300 Material can be aluminium and aluminum alloy, metal plate made from copper and copper alloy or other metal materials, in this way, by box body 100 are fixed on fluid reservoir 200, to reduce fluid reservoir 200 and relative motion occurs and generates vibration, and are transferred to box body In 100, the circuit module influenced on first circuit board 110 is worked normally.The rectification on first circuit board 110 is also helped simultaneously At work, the heat of generation passes through for the components such as bridge 20, compressor IPM module 50 and PFC power switch 31 and circuit module Box body 100 conducts heat on heat dissipation metal plate 300, accelerates the speed in heat transfer to fluid reservoir 200 by heat dissipation metal plate 300 Degree improves rate of heat dispation.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, the electrically-controlled component further includes mounting bracket 400, the installation Bracket 400 have back to the first side and second side, the first side of the mounting bracket 400 be sticked in the first circuit board On 110, the compressor IPM module 50 is mounted on second side of the mounting bracket 400, the compressor IPM module 50 Pin passes through the mounting bracket 400 and is connected and fixed with the first circuit board 110；

There is installation window, the compressor IPM module 50 is attached at institute by the installation window on the box body 100 It states on heat dissipation metal plate 300.

In the present embodiment, the pin of compressor IPM module 50 be mostly direct plugging-in or gull wing type encapsulation, and pin with The contact area of first circuit board 110 is typically small, especially direct plugging-in, therefore the load-bearing capacity of compressor IPM module 50 It is smaller, in order to avoid in first circuit board 110, when being mounted on heat dissipation metal plate 300, compressor IPM module 50 is squeezed buckling Shape, or be damaged, the present embodiment is additionally provided with mounting bracket 400, and compressor IPM module 50 is arranged in mounting bracket On 400, pin passes through the mounting bracket 400 and is connected and fixed with the first circuit board 110.So set, can also make to press Contracting machine IPM module 50 and heat dissipation 300 face of metal plate setting, the heat that compressor IPM module 50 is generated pass through heat dissipation Metal plate 300 is quickly conducted, to improve the rate of heat dispation of compressor IPM module 50.Box body 100 is fixedly mounted on fluid reservoir After on 200, vibration is generated in order to reduce first circuit board 110 and fluid reservoir 200 and relative motion occur, and be transferred to first On circuit board 110, when box body 100 is fixed on fluid reservoir 200, first circuit board 110 can be fixed on by screw, bolt It radiates on metal plate 300, certain first circuit board 110 can also be connect using other modes with box body 100 and heat dissipation metal plate 300 It is fixed, herein with no restrictions.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, the rectifier bridge 20 is mounted on the second of the mounting bracket 400 Side, the pin of the rectifier bridge 20 pass through the mounting bracket 400 and are connected and fixed with the first circuit board 110, the rectification Bridge 20 is attached on the heat dissipation metal plate 300 by the installation window.

In the present embodiment, the pin of rectifier bridge 20 and the pin of compressor IPM module 50 use identical packaged type, draw The contact area of foot and first circuit board 110 is smaller, therefore the load-bearing capacity of rectifier bridge 20 is smaller, in order to avoid in the first circuit When being mounted on heat dissipation metal plate 300, rectifier bridge 20 is deformed plate 110, or is damaged, by rectifier bridge 20 and compressor IPM module 50 is disposed side by side in mounting bracket 400, and the pin of rectifier bridge 20 and the pin of compressor IPM module 50 are worn respectively The mounting bracket 400 is crossed to be connected and fixed with the first circuit board 110.So set, compressor IPM module 50 can also be made And rectifier bridge 20 and heat dissipation 300 face of metal plate setting, the heat that compressor IPM module 50 and rectifier bridge 20 are generated lead to It crosses heat dissipation metal plate 300 quickly to be conducted, to improve the rate of heat dispation of compressor IPM module 50 and rectifier bridge 20.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, the electrically-controlled component further includes sealing ring 500, the sealing ring 500 are arranged between the box body 100 and the mounting bracket 400.

It should be noted that the operating temperature of fluid reservoir 200 be generally operating temperature generally maintain subzero 20 degrees Celsius~ Moisture between 30 degrees Celsius, therefore in air may condense into condensed water in fluid reservoir 200, which may be along liquid storage Heat dissipation metal plate 300 on the outer wall of tank 200 enters in the box body 100 of electrically-controlled component, and leads to rectifier bridge 20, compressor IPM Module 50, PFC power switch 31, PFC inductance 32 and dc-link capacitance 40 dampness and it is short-circuit, influence the normal work of electrically-controlled component Make.To solve the above-mentioned problems, the present embodiment is additionally provided with sealing ring 500 between mounting bracket 400 and box body 100, i.e., close Gasket, to use box body 100 to be completely cut off with heat dissipation metal plate 300, so that the component in box body 100 is sealed.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, electrically-controlled component further includes being fastened in the opening of the box body 100 Box cover 600, the box cover 600 forms sealing structure with the tight fit of box body 100.

In the present embodiment, the size and shape of box cover 600 and the size and shape adaptation of first circuit board 110, Ke Yiwei It is rectangular but be not limited to rectangular.Box cover 600 and the tight fit of box body 100 form sealing structure, so set, being conducive to stop extraneous The hazardous materials such as cold air, dust, rainwater, mosquito fall on first circuit board 110, ensure the safe operation of electrically-controlled component.This The electromagnetic radiation that external electrical field generates can also be emitted, be absorbed by outer seal configuration, so that weak enter in box body 100 The electromagnetic radiation of portion's electronic component, so that box body 100 has preferable electro-magnetic screen function.Sealing structure equally can also be to box The electromagnetic interference that 100 internal electronic element of body generates is reflected, is absorbed, to shield the electricity of 100 internal electronic element of box body The electromagnetic signal that field generates, to avoid the normal of the electrical equipment around the electromagnetic radiation of the electronic component in box body 100 Work.

It is understood that through-hole is also provided on box cover 600, power lead, data conductor on first circuit board 110 Etc. each circuit element interface of the through-hole (figure does not indicate) and second circuit board 120 (not shown go out) and PFC electricity can be passed through The electrical connection such as sense 32, dc-link capacitance 40, external dc blower, compressor blower.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, the second circuit board 120 is arranged in the box body 100, or Second circuit board 120 described in person is arranged in the shell of the outdoor unit, and is located at outside the box body 100.

In the present embodiment, second circuit board 120 be can be set in the box body 100 of electrically-controlled component, also can be set in box It outside body 100, such as is mounted on the corresponding installation position of shell of air-conditioner outdoor unit, such as case top, second circuit board 120 is also It may be mounted on the corresponding installation position of indoor unit.The present embodiment is chosen as second circuit board 120 and first circuit board 110 is installed In the box body 100 of electrically-controlled component, it is to be understood that the dress of second circuit board 120 and first circuit board 110 in box body 100 Can be adaptively adjusted according to the shape of respective template and size and fluid reservoir 200 with position so that box body 100 with Fluid reservoir 200 is adapted to.

Referring to figs. 1 to Fig. 5, in an alternative embodiment, power input interface is additionally provided on the second circuit board 120 Vin, Switching Power Supply 70 and EMC filter circuit 80, the input terminal of the Switching Power Supply 70 and the power input interface Vin connect It connects, the input terminal of the EMC filter circuit 80 is connect with the power input interface Vin, the output of the EMC filter circuit 80 End is connect with the rectifier bridge 20；

The input terminal of the Switching Power Supply 70 is connect with the rectifier bridge 20, the output end of the Switching Power Supply 70 with it is described The power end of master controller 10 is electrically connected.

In the present embodiment, Switching Power Supply 70 can be adopted by transformer, DC voltage-stabilizing chip, 70 chip of Switching Power Supply, voltage The components such as sample resistance, current sampling resistor are constituted, Switching Power Supply 70 be used for the AC power source that will access or DC power supply into After the conversion of row power supply, to generate the driving voltage of various numerical value, such as 3.3V, the voltages such as 5V, 12V, 15V, for second are generated Component power supply on circuit board 120 such as master controller 10 and first circuit board 110.In the present embodiment, EMC filter circuit 80 The protection of the correlation functions such as EMC, EMS and lightning protection can be provided for second circuit board 120 and first circuit board 110.

The present invention also proposes a kind of outdoor unit.

Referring to Fig. 5, which includes compressor 700 and electrically-controlled component as described above, and the compressor 700 has liquid storage Tank 200, the electrically-controlled component are fixedly mounted on the outer wall of the fluid reservoir 200, and the master controller 10 of the electrically-controlled component supplies It is communicated with indoor unit.The detailed construction of the electrically-controlled component can refer to above-described embodiment, and details are not described herein again.

In above-described embodiment, the side of the compressor main body is arranged in the fluid reservoir 200, and the box body 100 is installed Between the compressor main body and the fluid reservoir 200.

The operating temperature of fluid reservoir 200 generally maintains between subzero 20 degrees Celsius~30 degrees Celsius, therefore the water in air Condensed water may be condensed into fluid reservoir by dividing, which may enter automatically controlled along the heat dissipation metal plate on the outer wall of fluid reservoir In the box body of component, and the temperature of compressor 700 wants high generally relative to fluid reservoir 200, in fluid reservoir 200 close to compressor Side temperature is relatively high, essentially identical with environment temperature, then is not easily formed condensed water, therefore automatically controlled box body 100 is installed It can also prevent the condensed water formed on fluid reservoir 200 from entering electricity between the compressor main body and the fluid reservoir 200 In the box body for controlling component, the circuit element influenced in box body 100 is worked normally.

The present invention also proposes a kind of air conditioner, including compressor 700 and electrically-controlled component as described above, the compressor 700 With fluid reservoir 200, the electrically-controlled component is fixedly mounted on the outer wall of the fluid reservoir 200, or including, indoor unit and as above The main control chip communication connection of the outdoor unit, the master controller 10 of the outdoor unit and the indoor unit, electrically-controlled component or The structure of outdoor unit is referring to above-described embodiment, and details are not described herein again.

It should be understood that the air conditioner can be split air conditioner or integral air conditioner, due to air conditioner Embodiment include above-mentioned electrically-controlled component perhaps above-mentioned outdoor unit all embodiments have and above-mentioned electrically-controlled component or outdoor unit Identical technical effect, details are not described herein again.

The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly It is included in other related technical areas in scope of patent protection of the invention.

Claims

1. a kind of electrically-controlled component, which is characterized in that the electrically-controlled component includes master controller, rectifier bridge, pfc circuit, direct current mother Line capacitance and compressor IPM module, the rectifier bridge, the pfc circuit and the compressor IPM module are sequentially connected, described Dc-link capacitance is parallel to the output end of the pfc circuit, the master controller and the pfc circuit and the compressor IPM module is separately connected；The pfc circuit includes PFC power switch and PFC inductance；The electrically-controlled component further include:

First circuit board, the rectifier bridge, compressor IPM module and PFC power switch are set on the first circuit board, institute First circuit board is stated to be set in the box body；

The PFC inductance and the dc-link capacitance are mounted on the inner wall of the box body, the PFC inductance and the direct current Bus capacitor passes through connecting line and corresponding connection on the first circuit board respectively.

2. electrically-controlled component as described in claim 1, which is characterized in that be additionally provided with PFC inductance on the first circuit board and connect Mouthful and dc-link capacitance interface, the PFC inductance connect with the PFC inductive interface, the dc-link capacitance with it is described Capacitive interface connection.

3. electrically-controlled component as described in claim 1, which is characterized in that be additionally provided with power input on the second circuit board and connect Mouth, Switching Power Supply and EMC filter circuit, the input terminal of the EMC filter circuit is connect with the power input interface, described The output end of EMC filter circuit is connect with the rectifier bridge；

The input terminal of the Switching Power Supply is connect with the rectifier bridge, the output end of the Switching Power Supply and the master controller Power end electrical connection.

4. the electrically-controlled component as described in claim 1 based on compressor liquid storage can heat dissipation, which is characterized in that the electrically-controlled component It further include DC fan IPM module, the DC fan IPM module is set on the first circuit board, the DC fan IPM Module is electrically connected with the master controller.

5. electrically-controlled component as described in claim 1, which is characterized in that the box body has the first accommodating cavity and the second accommodating Chamber, the rectifier bridge, the PFC power switch and the compressor IPM module are placed in first accommodating cavity, described PFC inductance and the dc-link capacitance are placed in second accommodating cavity, the PFC inductance and the dc-link capacitance Pass through the second accommodating cavity heat loss through radiation；

The PFC power switch is integrated in the compressor IPM module, alternatively, the PFC power switch and the compressor The discrete setting of IPM module.

6. such as electrically-controlled component described in any one of claim 1 to 5, which is characterized in that the electrically-controlled component further includes heat dissipation metal plate Gold, the heat dissipation metal plate side are fixedly mounted on the one side of the fluid reservoir, the other side of the heat dissipation metal plate and the box Body is detachably connected.

7. electrically-controlled component as claimed in claim 6, which is characterized in that the electrically-controlled component further includes mounting bracket, the peace Dress bracket have back to the first side and second side, the first side of the mounting bracket be sticked on the first circuit board, institute Second side that compressor IPM module is mounted on the mounting bracket is stated, the pin of the compressor IPM module passes through the installation Bracket is connected and fixed with the first circuit board；

There is installation window, the compressor IPM module is attached on the heat dissipation metal plate on the box body.

8. electrically-controlled component as claimed in claim 7, which is characterized in that the rectifier bridge is mounted on the second of the mounting bracket Side, the pin of the rectifier bridge pass through the mounting bracket and are connected and fixed with the first circuit board, and the rectifier bridge passes through institute Installation window is stated to be attached on the heat dissipation metal plate.

9. a kind of outdoor unit, which is characterized in that the electrically-controlled component including compressor and as described in claim 1 to 8 any one, The compressor has fluid reservoir, and the electrically-controlled component is fixedly mounted on the outer wall of the fluid reservoir, the electrically-controlled component Master controller with indoor unit for communicating.

10. outdoor unit as claimed in claim 9, which is characterized in that the second circuit board is arranged in the box body, or The second circuit board is arranged in the shell of the outdoor unit, and is located at outside the box body.

11. a kind of air conditioner, which is characterized in that automatically controlled group including compressor and as described in claim 1 to 8 any one Part, the compressor have fluid reservoir, and the electrically-controlled component is fixedly mounted on the outer wall of the fluid reservoir；Or including indoor The main control chip of machine and the outdoor unit as described in claim 9 or 10, the master controller of the outdoor unit and the indoor unit is logical News connection.